一种新的近距离超分辨成像技术及其应用

A New Technology of Near Range Super Resolution Imaging and Its Application

目标成像识别技术在防空反导、弹药制导、电子对抗等领域有着广泛的应用需求。本文研究了脉冲回波信号的近距离透镜成像算法,仿真了小规模阵列在近距离条件下的目标分辨能力,仿真结果表明,针对不同距离、角度的目标,该技术能够实现对目标的有效分辨,并且角度分辨力远小于阵列的波束宽度,实现了近距离目标脉冲回波信号的超分辨成像。该方法不需要天线阵进行空间扫描,且天线单元较少,在对抗弹道导弹、拖曳式干扰的防空导弹导引头上具有潜在应用价值。

Target imaging recognition technology is widely used in anti-missile,ammunition guidance,electronic countermeasure and other fields. A near-range lens imaging algorithm of pulse echo signal is studied. The simulation results show that the technology can achieve effective target resolution for targets with different range and angle. The angle resolution is far less than the beam-width of the array,so the super-resolution imaging of pulse echo signal of near-range target is realized. This method does not need antenna array for space scanning and has fewer antenna elements. It has potential application value in anti-ballistic missile seeker and towed jamming.